Ariana Madix, once again, found herself at odds with Vanderpump Rules costars Stassi Schroeder, Kristen Doute, and Kate Maloney during Monday night's showing of the Bravo hit. So what caused the latest beef??

Well, Miz Madix became LIVID when it was revealed that the ladies had unfavorable things to say about the SUR bartender's brother, Jeremy Madix. Eek!!

Get all the dramz from the episode (below)…

Specifically, while discussing new pal Billie Lee's upcoming date with Mr. Madix, Schroeder and Doute expressed some concern. Per the longtime bestiez, Jeremy has a bit of a reputation for being inappropriate with their friends. Not only did Kristen advise Billie to meet with Jeremy in a "public place," but Stassi warned that Ariana's brother was "creepy."

Schroeder didn't hold back with her criticism, as she went on to accuse Jeremy of not leaving her alone at Tom Schwartz and Katie's wedding. Per Stassi, the situation "just gave [her] a sick feeling in [her] stomach."

Understandably concerned by the news she received, Billie took this gossip to her other gal pals, Scheana Marie and Lala Kent. After a pep talk from the other two women, who were totally down for the match, Billie went on her date with Jeremy — which went off without a hitch!

Madix even sweetly encouraged Billie on their date, as he said the transgender hostess was someone who should be "acknowledged as a woman and everyone else can fuck off."

Sadly, despite the successful outing, the drama raged on as Ariana caught wind of the shit talking. During a dinner with all of the ladies, the gossip about Jeremy was brought up. Katie attempted to defend Stassi and Kristen, by revealing that multiple women confided in her about Jeremy's allegedly "predatory" advances. She added:

"I had numerous girlfriends at my wedding saying he was creepy … he was predatory at my wedding."

Katie went on to say that she was only being "an advocate" for the women who were not present to speak for themselves. Ariana took this statement as Katie's way of saying she wasn't "an advocate" for women, and stormed off.

Later on in the episode, Ariana's boyfriend Tom Sandoval showed up at the Schwartzs' apartment to confront the women about the shade. When the ladies refused to apologize for their anti-Jeremy stance, he tried explaining that Ariana's brother "has had to deal with a lot of things." As Tom continued to be a Jeremy apologist, Stassi declared that she was "so sick of, like, protecting men."

This declaration resulted in a verbally aggressive threat from Sandoval:

"It's not true so you better fucking watch yourself."

In a confessional, Ariana defended Jeremy by claiming he was "a victim in this." While we clearly only know what Bravo wants us to know, we have a feeling there's a lot more to this situation.

Be sure to catch more Vanderpump Rules drama when it airs on Bravo on Mondays at 9 p.m. ET.